{"copyright_id":"0x2835a383c12d0cfcd5fe8379bca4a0eb07e35c23f0ee1cf9a2ee09275b0eb94e","name":"Bergwaldchörli Enggenhütten","registered_at":"2026-06-21T04:36:11Z","symbol":"NIM1821170","token_address":"0x7eb3c7b8adc6bcafe63ece0958e279b27b755ef9","type":"artist","uuid":"db8467ed-fbe0-462f-98bd-2e71c979c124"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835a383c12d0cfcd5fe8379bca4a0eb07e35c23f0ee1cf9a2ee09275b0eb94e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db8467ed-fbe0-462f-98bd-2e71c979c124.json and https://artists.proofprofile.net/proofs/artist/db8467ed-fbe0-462f-98bd-2e71c979c124.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ad86d55192e06dbfa9e5b2d003dbeb0c74b607b24fb3ba248f8d61e519fecb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH2011316514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c0e25b22546afa9107d1c2bf1d43defcbbc75c48d6c41bea23c7b97f83c69. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH2011316516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe711bc4fb02f36f814126c244902b5205131a25aedac8a1bd2dd8549c79d52e9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH5001401019.